hung in raise_barrier() in raid1.c -- any ideas?
flat view
From: Chris Friesen <hidden>
Date: 2012-09-20 16:52:50
Hi, I've got a fairly beefy (32 cpus, 64GB ram, isci-based SAS disks, etc.) embedded system running 2.6.27. We're seeing issues where disk operations suddenly seem to stall. In the most recent case we had the hung-task watchdog indicate that md1_resync was stuck for more than 120sec in raise_barrier(). There are a bunch of "normal" tasks also stuck in wait_barrier(), so based on that I assume we're stuck in the second call to wait_event_lock_irq(). Has anyone seen anything like this? Could commit 73d5c38 be related? What about 1d9d524? Also, what's the meaning of RESYNC_DEPTH? Thanks, Chris -- Chris Friesen Software Designer 3500 Carling Avenue Ottawa, Ontario K2H 8E9 www.genband.com